1, the principle of Mi 11 space charging is to use magnetic resonance wireless chargingElectrical technology. Magnetic resonance wireless charging technology is a kind of wireless charging method based on magnetic resonance principle. In the Mi 11's air separation charging technology, the charging device emits a magnetic field of a specific frequency, and the phone has a corresponding receiving coil built in.
2, millet 11 What principle of air charging Wireless charging to air charging : The technical principle of air charging is released from the energy source, there is a fixed frequency of radio waves and mobile phone receiving frequency match, so as to transmit power and charge. This technology has a power loss efficiency of about 70% due to the air transfer, butThe stable power of 5~10w is the limit. 3, according to Xiaomi, the core of Xiaomi air charging technology lies in spatial positioning and air energy transmission, its air charging pile built-in 5 phase interference antennas, can be millisecond spatial positioning of the mobile phone, accurate detection of the mobile phone position of 144 antennas composed of phase control array, through beamforming the millimeter wave directional transmission to the mobile phone.
4, millet space charging technology also supports multiple devices at the same time space charging, and each device supports 5W charging power, but the official did not announce how many devices can be charged at the same timeWhen using wireless charging, the induction coil inside the mobile phone should be in a very close distance from the wireless charger coil. 5, space charging technology is not invented by millet, in many years ago has already had this technology, but not set for commercial use, the principle is relatively simple, is the first wireless charging device plugged into the socket, the power into a special signal source, the mobile phone within the radiation range of the signal source can be automatically identified.
6, the principle of millet air charging technology Wireless charging to air charging : The core lies in spatial positioning and space energy transmission. The self-developed air separation charging pile has 5 built-in phase interference antennas, which can conduct millisecond spatial positioning of the mobile phone and accurately detect the location of the mobile phone. A phase control array of 144 antennas transmits millimeter waves to the phone through beamforming. On the mobile side, Xiaomi has self-developed the miniaturized design of the antenna array, with built-in beacon antenna and receiving antenna array.
Mobile phone space charging technologyThe transmitter coil is installed on the wireless charging base and the receiver coil is installed on the back of the mobile phone. When the mobile phone is charged near the charging base, the transmitter coil will generate an alternating magnetic field because of the AC power connected to it. The change in the magnetic field generates an induced current in the receiving coil, which transfers energy from the transmitting end to the receiving end, and finally completes the charging process.
Wireless space charging technology is a wireless charging technology that enables electronic devices to achieve wireless charging technology through electromagnetic induction, magnetic resonance and other principles without plugging wires. The principle is to transmit an electromagnetic wave signal through the transmitting end (charger), and then receive by the receiving end (electronic device)Electromagnetic waves convert the received energy to achieve charging.
The principle of electromagnetic resonance wireless charging technology is the same as the resonance principle of sound: an energy sending device and an energy receiving device are adjusted to the same frequency, and the energy of each other can be exchanged when resonating, so that the coil in one device can transfer electric energy to the coil in the other device at a distance to complete the charge.
There is an electromagnetic signal sent in the sending single coil, and the receiving single coil can receive the electromagnetic signal sent, and then the electromagnetic signal is converted into current, and the current enters the mobile phone, so as to achieve wirelessThe effect of charging. In simple terms, the wireless charger is actually a charging mode that relies on the energy of electromagnetic waves to convert electromagnetic waves into electricity.
Radio wave type: The working principle is to convert environmental electromagnetic waves into current and transmit current through the circuit. The transmission distance of this wireless charging method is greater than 10 meters, which is suitable for long-distance low-power charging, and can also realize automatic charging anytime and anywhere. However, because of the low conversion efficiency, if you use this method, the charging time will be longer. But Xiaomi's technology is different from all three.
It is worth noting that this way does notWhen the mobile phone is charged near the charging seat, the transmitting coil is connected to the alternating current due to the wireless charging and the air isolation charging , which will generate an alternating magnetic field and generate an induced current, thus transferring energy from the transmitting end to the receiving end to complete the charging.
2, secondly, the space charging technology involves the principle of spatial positioning. The space charging device has 5 phase interference antennas built in it, which can quickly conduct millisecond level spatial positioning for the mobile phone and accurately detect the location of the mobile phone. By beamforming, the millimeter wave is directed to the phone, and the 5W distance can be activated immediatelyCharge away from the air.
3, mobile phone space charging is the form of electromagnetic induction on the transmitting device has a transmitting coil, the receiving device has a receiving coil, through the electromagnetic induction between the two coils to transmit energy. The principle is to achieve the purpose of transmitting electric energy through electromagnetic conversion.
4, space charging technology is actually a wireless charging technology. Wireless charging technology is a technology that uses non-physical contact to achieve power transmission. At present, there are three common wireless power transmission technologies, which are wireless charging to air isolation charging : electromagnetic inductionThe working principle is: install the transmitting coil on the wireless charging base and install the receiving coil on the back of the mobile phone. When the mobile phone is charged near the charging base, the transmitting coil will generate alternating magnetic field due to the access of AC power.
2, there is an electromagnetic signal sent in the sending single coil, and the receiving single coil can receive the electromagnetic signal sent, and then the electromagnetic signal is converted into current, and the current enters the mobile phone, so as to achieve the effect of wireless charging. In simple terms, the wireless charger actually relies on the energy of electromagnetic waves to convert electromagnetic wavesA charging mode for electrical energy.
3, the air separation charging pile is realized, and its built-in 5 phase interference antennas can carry out millisecond spatial positioning of the mobile phone and accurately detect the position of the mobile phone. The phase control array composed of 144 antennas can transmit the millimeter wave to the mobile phone through beamforming, and the mobile phone can receive it through the miniature beacon antenna, and then realize 5W long-distance charging within a few meters.
4, mobile phone space charging is the form of electromagnetic induction on the transmitting device has a transmitting coil, the receiving device has a receiving coil, through the electromagnetic induction between the two coils to transmit energy. The principle is throughElectromagnetic conversion, to achieve the purpose of long-distance transmission of electric energy.
5, can be accurately positioned, where to hit, it sounds very powerful. There is still a lot of space for the development of wireless charging technology, electromagnetic induction is just one of them, and there is also a theoretical technology such as magnetic resonance supported by space charging, interested in their own understanding. Finally, if you are using wireless charging, be sure not to put the bus card with a chip, bank card, etc. near the wireless charger, which may be degaussed and bring unnecessary trouble.
6, the mobile phone standard charger and data cable connected to the wireless charger, and then handThe machine is placed in the center of the wireless charger base, wireless charging can be realized, the indicator light will have a breathing effect, and it will be extinguished after 5 seconds, plug and play, convenient and quick.